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Unit 9
Term | Definition |
---|---|
salt water | water found in oceans and seas, makes up 97% of Earth's water |
fresh water | water that has very little salt in it |
evaporation | the process by which a liquid changes into a gas |
condensation | the process by which a gas changes into a liquid |
precipitation | water that falls from clouds to Earth's surface |
water cycle | the movement of water from Earth's surface to the air and back again |
atmosphere | the layer of gases that surrounds Earth |
oxygen | a gas in the air and water, which most living things need to survive |
weather | what is happening in the atmosphere at a certain place and time |
temperature | a measure of how hot or cold something is |
climate | the long-term weather pattern of a place |
climate zone | an area that has similar average temperatures and precipitation throughout the year |
equator | the imaginary line that divides Earth into its northern and southern halves |
latitude | the measure of how far north or south a place is from the equator |